公开(公告)号：US20140269895A1

公开(公告)日：2014-09-18

申请号：US13801220

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Feng Ge ,  Hariharan G. Lalgudi ,  Sumit Mohan ,  Kai Wang ,  Narendranath Malayath

IPC: H04N7/01

CPC classification number: H04N7/0117 ,  H04N19/33 ,  H04N19/42 ,  H04N19/59

Abstract: Implementations include video image processing systems, methods, and apparatus for integrated video downscale in a video core. The downscaler computes and writes a display frame to an external memory. This frame may have the same resolution as a target display device (e.g., mobile device). The target display device then reads this display frame, rather than the original higher resolution frame. By enabling downscale during encoding/decoding, the device can conserve resources such as memory bandwidth, memory access, bus bandwidth, and power consumption associated with separately downscaling a frame of video data.

Abstract translation: 实现包括视频图像处理系统，方法和用于在视频核心中集成视频缩减的装置。 缩放器计算并将显示帧写入外部存储器。 该帧可以具有与目标显示设备（例如，移动设备）相同的分辨率。 目标显示设备然后读取该显示帧，而不是原始的较高分辨率帧。 通过在编码/解码期间实现低档，该设备可以节省与分别缩小视频数据帧相关联的资源，例如存储器带宽，存储器访问，总线带宽和功耗。

公开(公告)号：US20130301727A1

公开(公告)日：2013-11-14

申请号：US13801622

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Ling Feng Huang ,  Hari Ganesh Thirunageswaram ,  Hariharan G. Lalgudi ,  Sumit Mohan ,  Kai Wang

IPC: H04N7/26

CPC classification number: H04N19/503 ,  H04N19/102 ,  H04N19/103 ,  H04N19/105 ,  H04N19/136 ,  H04N19/162 ,  H04N19/176 ,  H04N19/50 ,  H04N19/55 ,  H04N19/57 ,  H04N19/593

Abstract: Methods and systems for efficient searching of candidate blocks for inter-coding and/or intra coding are provided. In one innovative aspect, an apparatus for performing motion estimation is provided. The apparatus includes a processor configured to identify a number of candidate blocks of a frame of video data to be searched, at least one candidate block corresponding to a block of another frame of the video data. The processor is further configured to select one or more of the candidate blocks to search based on a distance between the candidate blocks. The processor is also configured to select a method for searching the selected candidate blocks based on a format of the video data. The processor is also configured to estimate the motion for the block of the another frame based on the selected method and the selected candidate blocks.

Abstract translation: 提供了用于有效搜索用于帧间编码和/或帧内编码的候选块的方法和系统。 在一个创新方面，提供了一种用于执行运动估计的装置。 该装置包括：处理器，被配置为识别要搜索的视频数据的帧的候选块的数量;对应于视频数据的另一帧的块的至少一个候选块。 处理器还被配置为基于候选块之间的距离来选择一个或多个候选块进行搜索。 处理器还被配置为基于视频数据的格式来选择用于搜索所选择的候选块的方法。 处理器还被配置为基于所选择的方法和所选择的候选块来估计另一帧的块的运动。

公开(公告)号：US09237359B2

公开(公告)日：2016-01-12

申请号：US14036907

申请日：2013-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ling Feng Huang ,  Ravikanth Challagulla ,  Cheng-Teh Hsieh ,  Eric Michael Lutz ,  Rohan Prakash Mallya ,  Sumit Mohan

IPC: G06K9/40 ,  H04N19/80 ,  H04N19/70 ,  H04N19/86

CPC classification number: H04N19/80 ,  H04N19/70 ,  H04N19/865

Abstract: In an example, a method for filtering pixel data in video coding comprises determining a pixel filtering task from a plurality of pixel filtering tasks for filtering the pixel data, wherein each filtering task of the plurality of pixel filtering tasks is based on an instruction set for a programmable instruction set based controller, and executing the determined filtering task on the pixel data.

Abstract translation: 在一个示例中，用于对视频编码中的像素数据进行滤波的方法包括从多个像素滤波任务中确定像素滤波任务，以对像素数据进行滤波，其中，多个像素滤波任务中的每个滤波任务基于 基于可编程指令集的控制器，并对所述像素数据执行所确定的滤波任务。

公开(公告)号：US20150215617A1

公开(公告)日：2015-07-30

申请号：US14274215

申请日：2014-05-09

Applicant: QUALCOMM Incorporated

Inventor： Athanasios Leontaris ,  Mang Li ,  Sumit Mohan ,  In Suk Chong ,  Hariharan Ganesh Lalgudi

IPC: H04N19/107 ,  H04N19/14 ,  H04N19/192 ,  H04N19/18 ,  H04N19/91 ,  H04N19/82 ,  H04N19/156

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/147 ,  H04N19/176 ,  H04N19/182

Abstract: At least one processor is configured to encode samples of a largest coding unit (LCU) of a picture using a sample adaptive offset (SAO) mode. To encode the samples of the LCU using SAO, the at least one processor is configured to: calculate differences between corresponding reconstructed samples of the LCU and original samples of the LCU, clip a number of bits from each of the differences to form clipped differences, sum the clipped differences to form a sum of differences, clip the sum of differences to form a clipped sum of differences, calculate a number of the reconstructed samples, clip a number of bits from the number of reconstructed samples to form a dipped number of samples, and divide the clipped sum of differences by the clipped number of samples to produce an offset for the LCU.

Abstract translation: 至少一个处理器被配置为使用采样自适应偏移（SAO）模式对图像的最大编码单元（LCU）的采样进行编码。 为了使用SAO对LCU的样本进行编码，所述至少一个处理器被配置为：计算LCU的相应重建样本与LCU的原始样本之间的差异，从每个差异剪切位数以形成裁剪的差异， 将剪切的差值相加以形成差值之和，剪除差分之和以形成限幅差值之和，计算重构样本的数量，从重构样本的数量中剪除一些位数以形成浸渍数量的样本 ，并将限制的差值和除以剪切数量的样本，以产生LCU的偏移量。

公开(公告)号：US20150085916A1

公开(公告)日：2015-03-26

申请号：US14036907

申请日：2013-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ling Feng Huang ,  Ravikanth Challagulla ,  Cheng-Teh Hsieh ,  Eric Michael Lutz ,  Rohan Prakash Mallya ,  Sumit Mohan

IPC: H04N19/117

CPC classification number: H04N19/80 ,  H04N19/70 ,  H04N19/865

Abstract: In an example, a method for filtering pixel data in video coding comprises determining a pixel filtering task from a plurality of pixel filtering tasks for filtering the pixel data, wherein each filtering task of the plurality of pixel filtering tasks is based on an instruction set for a programmable instruction set based controller, and executing the determined filtering task on the pixel data.

Abstract translation: 在一个示例中，用于对视频编码中的像素数据进行滤波的方法包括从多个像素滤波任务中确定像素滤波任务，以对像素数据进行滤波，其中，多个像素滤波任务中的每个滤波任务基于 基于可编程指令集的控制器，并对所述像素数据执行所确定的滤波任务。

公开(公告)号：US20130301713A1

公开(公告)日：2013-11-14

申请号：US13849750

申请日：2013-03-25

Applicant: QUALCOMM INCORPORATED

Inventor： Stephen Cheung ,  Sumit Mohan

IPC: H04N7/34

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/436

Abstract: Systems and methods for intra prediction video coding are described herein. In one aspect, an apparatus includes a processor and a memory. The processor divides a video block into a plurality of video sub-blocks having a first size. The video block includes video units and has an intra prediction mode, and each video sub-block of the plurality of video sub-blocks includes at least a non-zero integer number of video units of the video block. The processor further determines prediction variables for a first video sub-block of the plurality of video sub-blocks based on the intra prediction mode of the video block and determines a predicted video unit for each video unit of the first video sub-block based on the intra prediction mode of the video block and the prediction variables for the first video sub-block. The memory stores the predicted video units.

Abstract translation: 本文描述了用于帧内预测视频编码的系统和方法。 一方面，一种装置包括处理器和存储器。 处理器将视频块划分成具有第一大小的多个视频子块。 视频块包括视频单元并具有帧内预测模式，并且多个视频子块中的每个视频子块至少包括视频块的非零整数个视频单元。 处理器还基于视频块的帧内预测模式进一步确定多个视频子块中的第一视频子块的预测变量，并且基于第一视频子块的每个视频单元确定预测的视频单元 视频块的帧内预测模式和第一视频子块的预测变量。 存储器存储预测的视频单元。